[{"id":639668617375,"handle":"all-regularly-priced-items","updated_at":"2026-05-08T19:10:14-06:00","published_at":"2024-11-30T15:25:35-07:00","sort_order":"best-selling","template_suffix":null,"published_scope":"web","title":"All Regularly Priced Items","body_html":null},{"id":280456888479,"handle":"audio","updated_at":"2026-05-08T13:12:26-06:00","published_at":"2021-12-02T11:21:36-07:00","sort_order":"best-selling","template_suffix":"top-level","published_scope":"global","title":"Audio","body_html":"","image":{"created_at":"2022-01-06T15:53:45-07:00","alt":"audio","width":971,"height":386,"src":"\/\/listenup.com\/cdn\/shop\/collections\/audio.png?v=1641509626"}},{"id":280460591263,"handle":"home-speakers","updated_at":"2026-05-08T05:09:05-06:00","published_at":"2021-12-02T12:20:57-07:00","sort_order":"manual","template_suffix":"","published_scope":"global","title":"Home Speakers","body_html":"","image":{"created_at":"2022-01-04T15:40:48-07:00","alt":"Home Speakers","width":1146,"height":455,"src":"\/\/listenup.com\/cdn\/shop\/collections\/home-speakers.png?v=1641336048"}},{"id":280461836447,"handle":"in-wall-speakers","updated_at":"2026-04-02T11:58:19-06:00","published_at":"2021-12-02T12:58:49-07:00","sort_order":"best-selling","template_suffix":"default","published_scope":"global","title":"In-Wall Speakers","body_html":"","image":{"created_at":"2022-01-04T16:01:24-07:00","alt":"In Wall Speakers","width":1146,"height":455,"src":"\/\/listenup.com\/cdn\/shop\/collections\/in-wall-speakers.png?v=1641337285"}},{"id":640425230495,"handle":"kef-speakers","title":"KEF Speakers","updated_at":"2026-05-08T05:09:05-06:00","body_html":"\u003cp\u003eShop all KEF Speakers at Authorized KEF Dealer ListenUp including the KEF Blades, KEF The Reference Speakers, KEF R Speakers, KEF Q Speakers, LS50 Meta Speakers, LS60 Wireless Speakers, LSX II Speakers, KEF In-Wall and In-Ceiling Speakers.\u003c\/p\u003e\n\u003cp\u003eListenUp is proud to be one of the top KEF Speaker Dealers in the US and we have access the entire KEF Speaker lineup. If you are looking to buy KEF Speakers and want to set up a new KEF Speaker System, our KEF Sales Experts are ready to help you on your audio journey. Contact us online or see KEF Speakers in action in any one of our store locations today!\u003c\/p\u003e\n\u003cp\u003eView our \u003ca href=\"https:\/\/listenup.com\/pages\/KEF\" title=\"KEF Brand Page at Authorized Dealer ListenUp\"\u003eKEF Brand Page\u003c\/a\u003e for a breakdown of each KEF Speaker line that we carry.\u003c\/p\u003e","published_at":"2025-03-27T14:57:44-06:00","sort_order":"manual","template_suffix":"","disjunctive":false,"rules":[{"column":"title","relation":"contains","condition":"KEF"},{"column":"title","relation":"contains","condition":"Speaker"}],"published_scope":"global","image":{"created_at":"2025-03-27T14:57:43-06:00","alt":"KEF Speakers - Shop All KEF Speakers at Authorized Dealer ListenUp","width":1392,"height":901,"src":"\/\/listenup.com\/cdn\/shop\/collections\/KEF-Speakers.jpg?v=1743109063"}},{"id":301151355039,"handle":"welcome10","updated_at":"2026-05-08T19:40:15-06:00","published_at":"2024-07-02T15:18:25-06:00","sort_order":"best-selling","template_suffix":null,"published_scope":"web","title":"Welcome10","body_html":null}]
The KEF Ci5120QLM-THX is a premium THX® Certified Ultra in-wall speaker engineered for large-room home theater performance. Its 12th generation Uni-Q® array and MAT™ deliver wide dispersion, sharper imaging, and cleaner detail for movies and music. Four long-throw bass drivers produce deep, controlled low end while maintaining low distortion at high output. With a paintable magnetic grille and Ultra-Thin Bezel styling, it disappears into the wall while your sound takes over the room. Key Features List (6 Succinct Bullets)
Get the Details
Features & Specs
THX® Certified Ultra for true theater dynamics
Designed to meet demanding performance targets, this speaker is built to reproduce cinematic impact, clarity, and scale that holds together at higher listening levels in larger spaces.
Uni-Q® point-source accuracy with a bigger sweet spot
By aligning drivers for coherent dispersion, Uni-Q helps create stable imaging and more even sound coverage—ideal for multi-seat rows and open-plan rooms.
MAT™ for cleaner treble and greater detail retrieval
Metamaterial Absorption Technology reduces unwanted rear energy that can blur detail, improving perceived clarity and making dialogue and subtle effects easier to understand.
Four dedicated bass drivers for tight, powerful low end
The multi-woofer configuration supports strong output and reduced distortion, delivering punch and depth that complements subwoofers while remaining controlled and musical.
3-way architecture with optimized crossover points
With dedicated LF, MF, and HF duties plus precisely tuned crossover frequencies, each driver focuses on what it does best—producing a more natural, balanced presentation.
Architectural aesthetics that blend into the room
The Ultra-Thin Bezel and paintable magnetic grille let the speaker visually disappear, making it ideal for design-forward installations where sound quality still needs to be top-tier.
THX® Certified Ultra for true theater dynamics
Designed to meet demanding performance targets, this speaker is built to reproduce cinematic impact, clarity, and scale that holds together at higher listening levels in larger spaces.
Uni-Q® point-source accuracy with a bigger sweet spot
By aligning drivers for coherent dispersion, Uni-Q helps create stable imaging and more even sound coverage—ideal for multi-seat rows and open-plan rooms.
MAT™ for cleaner treble and greater detail retrieval
Metamaterial Absorption Technology reduces unwanted rear energy that can blur detail, improving perceived clarity and making dialogue and subtle effects easier to understand.
Four dedicated bass drivers for tight, powerful low end
The multi-woofer configuration supports strong output and reduced distortion, delivering punch and depth that complements subwoofers while remaining controlled and musical.
3-way architecture with optimized crossover points
With dedicated LF, MF, and HF duties plus precisely tuned crossover frequencies, each driver focuses on what it does best—producing a more natural, balanced presentation.
Architectural aesthetics that blend into the room
The Ultra-Thin Bezel and paintable magnetic grille let the speaker visually disappear, making it ideal for design-forward installations where sound quality still needs to be top-tier.
Expert Insight
This in-wall speaker delivers impressive home-theater scale with clean dialogue and strong, controlled bass that stays composed at higher volumes. The wide dispersion makes seating placement less critical, which is especially helpful in multipurpose rooms. The low-profile grille design also makes it easy to achieve a premium, built-in look without sacrificing performance.
Nate M
Brand Manager
Details
KEF Ci5120QLM-THX In-Wall Speaker
The KEF Ci5120QLM-THX is a high-performance THX® Certified Ultra in-wall speaker designed to deliver true cinema-scale sound in large rooms—without visible floor-standing speakers. Built around KEF’s 12th generation Uni-Q® driver array and Metamaterial Absorption Technology (MAT™), it produces exceptionally clear dialogue, precise imaging, and controlled detail even at high volume. A powerful 3-way architecture with four long-throw bass drivers delivers deep, clean low end while keeping distortion low, making it ideal for premium home theater, media rooms, and multipurpose living spaces. Finished with a paintable magnetic metal grille and Ultra-Thin Bezel (UTB) styling, it blends seamlessly into the wall while your soundtrack takes center stage.
What It’s Good At:
Delivering THX Certified Ultra home-theater impact for large rooms with reference-style dynamics
Creating a wide listening area thanks to Uni-Q point-source dispersion and 150° nominal coverage
Producing cleaner, more accurate mids/highs by absorbing unwanted rear energy with MAT™
Hitting tight, low-distortion bass using four 120mm long-throw LF drivers
Installing cleanly with an architectural look via Ultra-Thin Bezel and paintable magnetic grille
Supporting high-output systems with robust power handling and 25–250W recommended amplifier power
KEF Ci5120QLM-THX Full Specifications:
Model: Ci5120QLM-THX
Series: Q Series
THX Certification: THX® Certified Ultra
Frequency Response Range: 45Hz – 20kHz
Frequency Response Remark: (±6dB) open-backed
Frequency Range: 38Hz – 20kHz
Sensitivity: 89dB
Nominal Impedance: 4Ω
Nominal Coverage: 150°
Maximum SPL: 105dB
Drive Units:
LF: 4 × 120mm (4.75 in.)
MF: 100mm (4 in.) Uni-Q
HF: 19mm (0.75 in.) vented aluminium dome with Metamaterial Absorption Technology¹
Remarks: ¹ Metamaterial Absorption Technology is a joint development with Acoustic Metamaterials Group.
KEF Ci5120QLM-THX Q&A:
How is the KEF Ci5120QLM-THX installed in the wall?
Install using the included cutout template to mark the opening, run speaker wire to the location, connect wiring, and secure the speaker per the manual. If you’re not comfortable cutting drywall or working around studs/wiring, professional installation is recommended for best results.
Are in-wall speakers a good choice compared to traditional box speakers?
In-wall speakers can deliver excellent sound while saving space and reducing visual clutter. The tradeoff is reduced placement flexibility after installation, so planning layout and listening positions is important.
What makes the Ci5120QLM-THX a strong option for home theater?
It combines THX® Certified Ultra performance with Uni-Q® dispersion and MAT™ for clearer, more immersive sound. The 3-way design and four bass drivers help deliver impactful dynamics and clean low end in larger rooms.
What amplifier power is recommended for this speaker?
KEF recommends 25–250W of amplifier power, giving you flexibility from moderate systems to high-performance home-theater amps.
Does this speaker need a high-pass filter or a subwoofer crossover setting?
A recommended high-pass filter range of 35Hz–100Hz is provided, allowing you to integrate the speaker smoothly with subwoofers based on your room size and bass goals.
How much wall depth is needed to mount it properly?
The mounting depth from the surface is 90mm (3.6"), with external depth listed as 96mm (3.8in.). Confirm stud bay depth and any obstructions before cutting.
What rear volume does the Ci5120QLM-THX require?
For optimal performance, the ideal rear volume is 70 L, with a minimum of 35 L. Proper rear volume helps the speaker deliver consistent bass and overall balance.
Can the grille be painted to match the wall?
Yes. It includes a paintable magnetic metal grille and an Ultra-Thin Bezel (UTB) design for a clean, built-in look.
The KEF Ci5120QLM-THX is a premium THX® Certified Ultra in-wall speaker engineered for large-room home theater performance. Its 12th generation Uni-Q® array and MAT™ deliver wide dispersion, sharper imaging, and cleaner detail for movies and music. Four long-throw bass drivers produce deep, controlled low end while maintaining low distortion at high output. With a paintable magnetic grille and Ultra-Thin Bezel styling, it disappears into the wall while your sound takes over the room. Key Features List (6 Succinct Bullets)
Get the Details
Features & Specs
Features & Specs
THX® Certified Ultra for true theater dynamics
Designed to meet demanding performance targets, this speaker is built to reproduce cinematic impact, clarity, and scale that holds together at higher listening levels in larger spaces.
Uni-Q® point-source accuracy with a bigger sweet spot
By aligning drivers for coherent dispersion, Uni-Q helps create stable imaging and more even sound coverage—ideal for multi-seat rows and open-plan rooms.
MAT™ for cleaner treble and greater detail retrieval
Metamaterial Absorption Technology reduces unwanted rear energy that can blur detail, improving perceived clarity and making dialogue and subtle effects easier to understand.
Four dedicated bass drivers for tight, powerful low end
The multi-woofer configuration supports strong output and reduced distortion, delivering punch and depth that complements subwoofers while remaining controlled and musical.
3-way architecture with optimized crossover points
With dedicated LF, MF, and HF duties plus precisely tuned crossover frequencies, each driver focuses on what it does best—producing a more natural, balanced presentation.
Architectural aesthetics that blend into the room
The Ultra-Thin Bezel and paintable magnetic grille let the speaker visually disappear, making it ideal for design-forward installations where sound quality still needs to be top-tier.
THX® Certified Ultra for true theater dynamics
Designed to meet demanding performance targets, this speaker is built to reproduce cinematic impact, clarity, and scale that holds together at higher listening levels in larger spaces.
Uni-Q® point-source accuracy with a bigger sweet spot
By aligning drivers for coherent dispersion, Uni-Q helps create stable imaging and more even sound coverage—ideal for multi-seat rows and open-plan rooms.
MAT™ for cleaner treble and greater detail retrieval
Metamaterial Absorption Technology reduces unwanted rear energy that can blur detail, improving perceived clarity and making dialogue and subtle effects easier to understand.
Four dedicated bass drivers for tight, powerful low end
The multi-woofer configuration supports strong output and reduced distortion, delivering punch and depth that complements subwoofers while remaining controlled and musical.
3-way architecture with optimized crossover points
With dedicated LF, MF, and HF duties plus precisely tuned crossover frequencies, each driver focuses on what it does best—producing a more natural, balanced presentation.
Architectural aesthetics that blend into the room
The Ultra-Thin Bezel and paintable magnetic grille let the speaker visually disappear, making it ideal for design-forward installations where sound quality still needs to be top-tier.
Expert Insight
Expert Insight
This in-wall speaker delivers impressive home-theater scale with clean dialogue and strong, controlled bass that stays composed at higher volumes. The wide dispersion makes seating placement less critical, which is especially helpful in multipurpose rooms. The low-profile grille design also makes it easy to achieve a premium, built-in look without sacrificing performance.
Nate M
Brand Manager
Details
Details
KEF Ci5120QLM-THX In-Wall Speaker
The KEF Ci5120QLM-THX is a high-performance THX® Certified Ultra in-wall speaker designed to deliver true cinema-scale sound in large rooms—without visible floor-standing speakers. Built around KEF’s 12th generation Uni-Q® driver array and Metamaterial Absorption Technology (MAT™), it produces exceptionally clear dialogue, precise imaging, and controlled detail even at high volume. A powerful 3-way architecture with four long-throw bass drivers delivers deep, clean low end while keeping distortion low, making it ideal for premium home theater, media rooms, and multipurpose living spaces. Finished with a paintable magnetic metal grille and Ultra-Thin Bezel (UTB) styling, it blends seamlessly into the wall while your soundtrack takes center stage.
What It’s Good At:
Delivering THX Certified Ultra home-theater impact for large rooms with reference-style dynamics
Creating a wide listening area thanks to Uni-Q point-source dispersion and 150° nominal coverage
Producing cleaner, more accurate mids/highs by absorbing unwanted rear energy with MAT™
Hitting tight, low-distortion bass using four 120mm long-throw LF drivers
Installing cleanly with an architectural look via Ultra-Thin Bezel and paintable magnetic grille
Supporting high-output systems with robust power handling and 25–250W recommended amplifier power
KEF Ci5120QLM-THX Full Specifications:
Model: Ci5120QLM-THX
Series: Q Series
THX Certification: THX® Certified Ultra
Frequency Response Range: 45Hz – 20kHz
Frequency Response Remark: (±6dB) open-backed
Frequency Range: 38Hz – 20kHz
Sensitivity: 89dB
Nominal Impedance: 4Ω
Nominal Coverage: 150°
Maximum SPL: 105dB
Drive Units:
LF: 4 × 120mm (4.75 in.)
MF: 100mm (4 in.) Uni-Q
HF: 19mm (0.75 in.) vented aluminium dome with Metamaterial Absorption Technology¹
Remarks: ¹ Metamaterial Absorption Technology is a joint development with Acoustic Metamaterials Group.
KEF Ci5120QLM-THX Q&A:
How is the KEF Ci5120QLM-THX installed in the wall?
Install using the included cutout template to mark the opening, run speaker wire to the location, connect wiring, and secure the speaker per the manual. If you’re not comfortable cutting drywall or working around studs/wiring, professional installation is recommended for best results.
Are in-wall speakers a good choice compared to traditional box speakers?
In-wall speakers can deliver excellent sound while saving space and reducing visual clutter. The tradeoff is reduced placement flexibility after installation, so planning layout and listening positions is important.
What makes the Ci5120QLM-THX a strong option for home theater?
It combines THX® Certified Ultra performance with Uni-Q® dispersion and MAT™ for clearer, more immersive sound. The 3-way design and four bass drivers help deliver impactful dynamics and clean low end in larger rooms.
What amplifier power is recommended for this speaker?
KEF recommends 25–250W of amplifier power, giving you flexibility from moderate systems to high-performance home-theater amps.
Does this speaker need a high-pass filter or a subwoofer crossover setting?
A recommended high-pass filter range of 35Hz–100Hz is provided, allowing you to integrate the speaker smoothly with subwoofers based on your room size and bass goals.
How much wall depth is needed to mount it properly?
The mounting depth from the surface is 90mm (3.6"), with external depth listed as 96mm (3.8in.). Confirm stud bay depth and any obstructions before cutting.
What rear volume does the Ci5120QLM-THX require?
For optimal performance, the ideal rear volume is 70 L, with a minimum of 35 L. Proper rear volume helps the speaker deliver consistent bass and overall balance.
Can the grille be painted to match the wall?
Yes. It includes a paintable magnetic metal grille and an Ultra-Thin Bezel (UTB) design for a clean, built-in look.
